<!DOCTYPE html>
<html lang="zh-CN">
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

        <link rel="stylesheet" href="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/3.4.1/css/bootstrap.min.css">

        <title>{% block title %}{% endblock %}</title>
    </head>
    <body>
        <nav class="navbar navbar-default">
            <div class="navbar-header">
                <button type="button" class="navbar-toggle collapsed">
                    <span class="sr-only">Toggle navigation</span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                  </button>
                  <a class="navbar-brand" href="#">SuperMain BBS</a>
            </div>
            <div class="collapse navbar-collapse">
                <ul class="nav navbar-nav">
                    <li><a href="#">首页</a></li>
                    <li><a href="#">帖子</a></li>
                </ul>
            </div>
        </nav>

        {% block content %}{% endblock %}

        <script src="https://cdn.bootcdn.net/ajax/libs/jquery/2.2.3/jquery.min.js"></script>
        <script src="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/3.4.1/js/bootstrap.min.js"></script>
    </body>
</html>